SPIRAL WOUND MEMBRANE FILTRATION DEVICE AND METHODS USING SUCH A DEVICE

摘要

A membrane filtration device of the spiral wound type is provided which has a radial feed-concentrate flow path and an axial permeate discharge (11) thus allowing conversion of a feed mixture to be varied to any practical desired degree without regard to the membrane device's length while maintaining turbulent or chopped laminar hydrodynamic flow conditions where desired. Methods of using such a membrane device in a filtration process are also provided.